Patent US3606531A successfully refreshed from Google Patents.
US3606531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image reproduction using electrogasdynamics
Assignee: Energy Innovations Inc
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Filing: 1968-09-30
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Granted: 1971-09-20
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Expires: 1988-09-30
Abstract
Abstract A METHOD AND MEANS FOR REPRODUCING AN IMAGE ON A DIELECTRIC SHEET, OR IRREGULAR OR CURVED SURFACE, COMPRISING THE USE OF AN ELECTROGASDYNAMICALLY PRODUCED SPACE CHARGE CLOUD OF IONIZED INK TO DEVELOP AN IMAGE OF A LIGHT PATTERN PROJECTED ONTO A CONVENTIONAL XEROGRAPHIC PLATE. THE DEVELOPED INK IMAGE IS OF IMPROVED QUALITY BY VIRTUE OF THE TENDENCY OF ELECTROGASDYNAMICALLY PRODUCED PARTICLES TO ACHIEVE A UNIFORM CHARGE DISTRIBUTION ON A DIELECTRIC SURFACE.
Inventors
- 👤 Meredith C Gourdine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:38
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/22; G03G13/06; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |